Home / 2,540.67-3,811.35-1,154.36

Finding the Fourth Proportional to 2,540.67, 3,811.35 and 1,154.36

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Solution

The fourth proportional to 2,540.67, 3,811.35 and 1,154.36 is: 1,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.67 : 3,811.35 = 1,154.36 : x
  2. Step 2: Convert to fraction form
    2,540.67/3,811.35 = 1,154.36/x
  3. Step 3: Cross multiply
    2,540.67x = 3,811.35 × 1,154.36
  4. Step 4: Simplify right side
    2,540.67x = 4,399,669.99
  5. Step 5: Solve for x
    x = 4,399,669.99/2,540.67
  6. Step 6: Final answer
    x = 1,731.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.